One fateful night, the stars appear to align for Connor (Jonah Hauer-King), a kind and unassuming young man, as his irreverent long-time crush Olivia (Zoey Deutch) steers them into a threesome with alluring stranger Jenny (Ruby Cruz). The encounter sparks a relationship between Connor and Olivia and their love grows quickly, all the way toward planning a life together. But their happy romance is soon demolished when Jenny reappears in their lives, thrusting all three into a difficult and messy journey towards true accountability and adulthood.